Queen's Gambit Declined - 3.Nc3
1. d4 d5 2. c4 e6 3. Nc3
White advances the queen's pawn to d4. Black plays the queen's pawn to d5. White moves the c-pawn to c4.
Black pushes the king's pawn to e6. White develops the knight to c3.
White advances the queen's pawn to d4. Black plays the queen's pawn to d5. White moves the c-pawn to c4.
Black pushes the king's pawn to e6. White develops the knight to c3.